Question

What is foot of directrix

Answer 1

As we know the directrix is the fixed line, the foot of directrix is the point of directrix which lies on a line perpendicular to the directrix. This line passes between focus and the point.

Answer 2

As we know the directrix is the fixed line, the foot of directrix is the point of directrix which lies on a line perpendicular to the directrix. This line passes between focus and this point, which is called the foot of the directrix.